i'm using gentoo with the latest gnome and i have emerged ktorrent 2.2.2(i have also tried older version with the same results) but the plugins do not appear in the plugin options, if launched from console i get the errors below, any ideas?
io (KMimeType): WARNING: KServiceType::offers : servicetype ThumbCreator not found
kio (KMimeType): WARNING: KServiceType::offers : servicetype ThumbCreator not found
kio (KMimeType): WARNING: KServiceType::offers : servicetype ThumbCreator not found
kio (KMimeType): WARNING: KServiceType::offers : servicetype ThumbCreator not found
kio (KMimeType): WARNING: KServiceType::offers : servicetype ThumbCreator not found
kio (KMimeType): WARNING: KServiceType::offers : servicetype ThumbCreator not found
kio (KMimeType): WARNING: KServiceType::offers : servicetype ThumbCreator not found
kio (KMimeType): WARNING: KServiceType::offers : servicetype ThumbCreator not found
kio (KMimeType): WARNING: KServiceType::offers : servicetype KTorrent/Plugin not found

Where are the plugins installed ?

plugins are in /usr/lib64/kde3 though other plugins are there aswell for k3b etc

Try adding that directory to the $KDEDIRS environment variable, then run kbuildsycoca and start KT

Greetings!

I am having similar troubles. I just rebuilt my server & so recompiled gentoo & all my other stuff.
I started using ktorrent back with version 2.0.something. With that build, I had all the plugins correct & used many of them. I later upgraded to 2.2.x, ending with 2.2.4 shortly before upgrading my hardware. All the required plugins do seem to reside in (for me) /usr/lib/kde3/ , but exporting KDEDIRS & running kbuildsycoca didn't seem to fix it. I'm afraid I am rather at a loss as to why on this new setup, Ktorrent can no longer find those plugins :/. Any assistance is much appreciated.

sorry for the double post!
Just a bit more info:

kio (KMimeType): WARNING: KServiceType::offers : servicetype KTorrent/Plugin not found

is what I get when running Ktorrent from the Konsole

The service type KTorrent/Plugin is defined in a desktop file named ktorrentplugin.desktop, which in your case should be in /usr/lib/kde3/share/servicetypes. Check if that file exists, if it doesn't then something went wrong with the install.

Thanks for the info.
Some re-linking & restarting KDE seemed to fix things.
Now we'll see if KDE4 likes it..... :p
but I'll experiment with that on my desktop, not the server :p